3.4.23.39: plasmepsin II

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For detailed information about plasmepsin II, go to the full flat file.

Reaction

Hydrolysis of the bonds linking certain hydrophobic residues in hemoglobin or globin. Also cleaves the small molecule substrates such as Ala-Leu-Glu-Arg-Thr-Phe!Phe(NO2)-Ser-Phe-Pro-Thr =

Synonyms

AH II, aspartic hemoglobinase II, malarial aspartic protease, PFAPD, pfpm2, plasmepsin 2, plasmepsin II, PLm II, PLMII, PM II, PMII, PSM2

ECTree

     3 Hydrolases

         3.4 Acting on peptide bonds (peptidases)

             3.4.23 Aspartic endopeptidases

                3.4.23.39 plasmepsin II

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Results	in table
7	AA Sequence
4	Application
1	CAS Registry Number
14	Cloned(Commentary)
14	Crystallization (Commentary)
2	General Information
294	IC50 Value
565	Inhibitors
3	kcat/KM [mM/s]
192	Ki Value [mM]
98	KM Value [mM]
11	Localization
3	Molecular Weight [Da]
15	Natural Substrates/ Products (Substrates)
65	Organism
1	Pathway
53	PDB ID
11	pH Optimum
4	pH Range
10	Posttranslational Modification
16	Protein Variants
13	Purification (Commentary)
1	Reaction
1	Reaction Type
65	Reference
1	Renatured (Commentary)
4	Source Tissue
99	Substrates and Products (Substrate)
7	Subunits
36	Synonyms
6	Temperature Optimum [°C]
102	Turnover Number [1/s]

General Information

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General Information on EC 3.4.23.39 - plasmepsin II

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GENERAL INFORMATION

ORGANISM

UNIPROT

COMMENTARY

LITERATURE

malfunction

Plasmodium falciparum

-

multiple plasmepsin knockout mutants lacking plasmepsins I-III and I-IV, respectively show a significant increased parasite susceptibility to cyteine protease inhibitors. A ninefold increase in the potency of the calpain inhibitor N-acetyl-leucinyl-leucinyl-norleucinal (ALLN) against parasites lacking all four plasmepsins (I-IV) is observed. It is hypothesized that plasmepsins and some cysteine proteases play redundant or complementary roles in the digestive vacuole and that the absence of all plasmepsins (I-IV) renders these parasites highly susceptible to N-acetyl-leucinyl-leucinyl-norleucinal-mediated inhibition of falcipains

707169

physiological function

Plasmodium falciparum

Q8I6V3

enzyme overexpression fails to change the susceptibility of Plasmodium falciparum to artemisinin, chloroquine and piperaquine

753935